3 years ago

Who can help and explain these 2 questions

1 answer:

6 0

Coefficients are added together because they are like terms, this can be proven with the distributive property. For example, x(2x+x)=2x^2+x^2=3x^2.

The commutative property of addition and the associative property demonstrate this.

The word "commutative" comes from "commute" or "move around", so the Commutative Property<span> is the one that refers to moving values around.
</span>
The associative property<span> states that you can add or multiply regardless of how the numbers are grouped. </span>

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Lostsunrise [7]

Answer: B

Step-by-step explanation:

Since this is a 30-60-90 triangle, b=8(sqrt3) = 8sqrt3.

By the same logic, c=8(2)=16.

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2 years ago

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Answer:

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Step-by-step explanation:

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3 years ago

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Murljashka [212]

1) 50*50, our 2500
2) 1500
3)1500
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just multiply t the number of people by the amount each pays

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2 years ago

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dybincka [34]

The following table shows the total number of quizzes taken in high school. how many quizzes are taken per week?

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2 years ago

Multiply the polynomials. (5x2 + 2x + 8)(7x – 6) A. 35x3 – 16x2 – 44x – 48 B. 35x3 – 14x2 + 44x – 48 C. 35x3 – 16x2 + 44x + 48 D

ZanzabumX [31]

Answer:

D) 35x³ - 16x² + 44x - 48

Step-by-step explanation:

(5x2 + 2x + 8)(7x – 6) = (5x2 + 2x + 8)* 7x + (5x2 + 2x + 8)*(– 6)

= (5x2*7x + 2x*7x + 8*7x) + (5x2*(-6) + 2x*(-6) + 8*(-6) )

=35x³ + 14x² + 56x - 30x² - 12x - 48

= 35x³ - 16x² + 44x - 48

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3 years ago